Hot water line sizing help
Background: House is 2000 sqft, built in 1975, in the south, all copper.
The copper hot water line in the slab must have burst at some point because the previous owner has installed 1/2 flex copper in the attic. ALL 1/2 from the outlet of the water heater. The feed to the heater is still the original 3/4 slab copper. So far everything has worked in regards to flow and pressure.
My issue: Im looking to move the water heater to a location that wont have a 3/4 cold supply. Basically, I want to move to my garage that has access to the master bath wet wall. Can i just use the 1/2 branch for the master bath to supply the water heater? Also, this will move the heater farthest away from the kitchen sink. Is this an issue as well? I figure, since the whole hot water line has been replaced with 1/2, a 1/2 feed shouldnt be an issue. Just thought id try here first.
Just created this account for this question but i usually search this site for all my projects. Yall have been helpful everytime. Thanks.